Valve



- and are Patented May 1,

UNITED STATES PATENT OFFICE.

JOSEPH E. ALPIPLETON, F OSHK'OSH, WISCONSIN, ASSIGNOR T0 OHALLEYV-BEABE'VALVE COBPONATION, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

VALVE.

Application led March 25, 1927. Serial No. 178,174.

The present invention is concerned with valves ofthe type in which oneor more re-v placeable head plates are employed.

The object of the invention is to provide, in such a valve, an improvedhead plate which is inexpensive to manufacture, is easy to apply orremove, may be used either singly or in multiple, and is absolutelyiuidtight in service.

While the foregoing statement is indicative in a general way of thenature of 'the invention, other objects and advantages will Vbe evidentto those skilled in the art upon a full understanding of the nature ofthe improvement.

In order that the invention may be readily understood, one form ispresented herein for the purpose of exemplification, but it will ofcourse be appreciated that the invention is susceptible of embodiment inother structurally modiied forms coming equally within the-scope of theappended claims.

In the accompanying drawing:

Fig. 1 is a vertical section through a valve equipped with theimprovement;

F1g.`2 is a horizontal section, taken on the line 2-2 of Fig. 1; Y

Fig. 3 is a plan view of one of the head plates; and

Fig. 4 is a side view of one of the head plates. y

The valve illustrated in the drawing is of the so-called globe type,"and consists of a body 10, a seat 11, a bonnet 12, a stem 13, a handle14, and a head 15. The invention resides in the head construction, whichwill 4be described in detail.

The peripheral portions of thebacking plate and head platesfarepreferably conical in shaple, but maybe flat, or of any shape desire Thebacking plate 16 is centrally apertured at 18, and fits over the lowerend of the stem, where it is loosely held against an annular shoulder 19on the stem by a cotter pin 20.

The head plates 17 17 are not apertured at all, but are continuous fromside to side, provided about their peripheries with a p uralt of spacedattaching ears i 22, 22-prefera ly three in numberwhich are adapted tobe bent upwardly and `inwardly about the edge of the backing plate. Thehead plate '17 nearest the backing plate is first securely attached tothe backing nested head plates being so positioned in angular relationto each other as to cause the earsof one plate to occupy positionsbetween the ears of the other.

The ears on the head plates may beeasily bent into fastening positionwith an ordinary pair of pliers, and, when the lowermost head plate 17becomes cut or otherwise unfit for further service, the ears 22 of thatplate may be bent outwardly again and the plate removed, leaving theupper head plate 17 in position ready for service.

The head plates may be produced very economically from thin sheet metalby a simple stamping operation, and are absolutely fluid-tight inservice, since they have no central apertures or other openings throughwhich leakage may occur. Y

The seat against which the lower head plate bottoms may obviously be ofany construction. The. particular seat constructionl shown embodies animprovement which forms the subject matter of my (zo-pendingapplication, Serial No. 178,175 led March 25, 1927.

I claim:

1. In a valve, a stem, a centrally apertured sheet metal backing platefitted Iover the .lower end of the stem, means for preventing anysubstantial endwise movement of the backing plate on the stem whilepermitting the backing plate to rock slightly on the stem, and a headplate completely covering the pressure end of the stem and back ingplate and having peripheral attaching ears which are adapted to be bentback over the edge of the backing late. 2. In a valve, the com inationwith'a stem, having a reduced lower end portion, of a centrallyapertured sheet metal backin plate positioned on the reduced rtion o thestem with the top of the baclng late, against the shoulder on the stemresu tino` from the reduction, a pin extending throug the stem beneaththe backin plate for preventing any substantial en wise movement of thebacking plate, and a sheet metal head plate completely covering thepressure end of the stem Vand backing plate and having to be bent backover'the edge of the backing plate.

3. In a valve, the combination with a stem havin a reduced lower endportion,4 of a centra 1y apertured backing plate positioned on thereduced portion of the stem with the top of the backing plate againstthe shoulder on the stem resulting from rthereduction, means associatedwith the reduced portion of the stem beneath the backing plate forpreventing any substantial endwise movement of the 'backing plate on thestem, and a sheet metal head plate completely covering Loenen peripheralattaching ears; one of said plates eing cupped over the head with itsattaching ears ent back over the edge of the head, and the other beingcupped over the first plate with its attachin ears bent bark `over theedge of'th'e head itween the ears on the first plate.

5. In a valve, a. generally conical head, a plurality of generallyconical head plates nested together over the head, and meansl on theplates forattaching each of the same separately to the head.

6. A head plate which Iis so shaped as to fit over or nest within asimilar plate and is provided with attaching ears adapted to engage withthe head of a valve between the attaching ears on a similar plateassociated with such head.- Y

In testimony whereof I have'l hereunto subscribed my name.

JOSEPH H. APPLETON.

